Question

[xsquare+7x+12x]÷[x+3)
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Answer 1

$\: \: \: \: \frac{ {x}^{2} + 7x + 12 }{x + 3} \\ = \frac{ {x}^{2} + (4 + 3)x + (4)(3)}{(x + 3)} \\ = \frac{(x + 4)(x + 3)}{(x + 3)} \: \: \: \: \: \: ... \: (x + a)(x + b) = {x}^{2} + (a + b)x + ab \\ = x + 4$

Answer 2

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